package com.wuhuahe.luanfeng.netty.example.echo;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

/**
 * Created By wuhuahe
 * author:游龙
 * Date: 2018-07-09
 * Time: 17:40
 * Desc:
 */
public class EchoClientHandler extends ChannelInboundHandlerAdapter {

    private final ByteBuf firstMessage;

    public EchoClientHandler(){
        firstMessage = Unpooled.buffer(EchoClient.SIZE);
        for(int i = 0; i < firstMessage.capacity(); i ++){
            firstMessage.writeByte((byte)i);
        }
    }

    @Override
    public void channelActive(ChannelHandlerContext ctx){
        ctx.writeAndFlush(firstMessage);
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg){
        ctx.write(msg);
    }

    @Override
    public void channelReadComplete(ChannelHandlerContext ctx){
        ctx.flush();
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause){
        cause.printStackTrace();
        ctx.close();
    }
}
